Sight for firearms.



PATENTED FEB. 26, 1907.

0. G. THUNEN. SIGHT FOR FIREARMS. APPLICATION FILED OOT.26, 1906.

A TTORNEYS' WITNESSES CHARLES GERHARD THUNEN, OF OROVILLE, CALIFORNIA.

SIGHT FOR FIREARMS.

Specification of Letters Patent.

Patented Feb. 2c, 1907.

Application filed October 26,1906. Serial No. 340,673.

To all whom) it may concern:

Be it known that I, CHARLES GERHARD THUNEN, a citizen of the United States, and a resident of uroville, in the county of butte and state of Ualiforma, have invented a new and Improved bight for hirearms, of which the following is a full, clear, and exact oescription.

The invention relates to gun-sights such as shown and described in Letters katent of the United States No. 57 3,725, granted to me December 22, 1896.

The object of the present invention is to provide a new and improved sight for firearms which is simple and durable in construction and arranged to allow rough usage and to permit obtainmg an exceedingly accurate sight without danger of being blurred byhmist or rain settling on the parts of the sig t. I

The invention consists of novel features and parts and combinations of the same, which will be more fully described hereinafafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference incicate corresponding parts in all the views.

liigure l is a front elevation of the improvement as applied to the barrel of a gun, the barrel being shown in cross-section. Fig. 2 is a side elevation of the rear sight detached from the gun, and parts being shown in section. Fig. 3 is an enlarged rear elevation of the front'sight. big. a is an enlarged rear elevation of the rear sight, the spring.- plate being shown in section. big. 5 is an enlarged longitudinal sectional elevation of the front sight, and I ig. 6 is a like view of the rear sight. 4

The front sight A and the rear si ht Bare mounted in the usual manner on t e barrel C of the gun or other firearm on which the sights are used. 'lhe front sight A is held in a ring E, having a dovetail base E fitting a correspondingly-shaped groove on the barrel, and within the said ring E is fitted a tubular support D', carrying cross-strips F and F, of which one is provided at its middle with a siot for receiving a portion of the other strip, and one of the strips-as shown, the strip F-is provided at the intersection of the two strips with a bead G, appearing on the opposite faces of the strip, as plainly indicated inFig. 3. The outer ends of the strips F and F are fitted into slots in the tubularsupport D, so that the latter carries the said cross-strips and one of the latter centrally supports the Lead G.

The strips 1 1*" are arranged at right angles one to the other and are preferably placed at an angle of forty-five degrees to the vertical, .as plainly indicated in the drawings.

The rear sight B is mounted on a ring E held on the shell spring-plate It, hav ing a notched plate E for adjusting the elevation of the sight in the usual manner, and within the said ring E is fitted a tubular support H, carrying cross-strips I and I, centrally supporting a sight-tube J, the axis of which coincides with the axis of the tubular support H and with the bead G of the front sight A. (See l igs. 5 and 6.) The crossstrips I I" are arranged at right angles one to the other and are preferably placed at an angle of forty-five degrees to the vertical. By arranging the cross-strips F F and I I in the manner described it is possible to adjust the .base for a common open or other .rear sightin the bottom of the tubular support 11 and between the lower supports of the strips 1 l of the rear sight and an ordinary front side base correspondingly in the bottom of the tubular support I of the front sight. 'However, as the tubular supports D and H are detachable and removable .at pleasure the cross-strips F F and I I may be placed at any angle relative to the vertical. 'l he or dinary open sght may be placed,

together with the improved sight shown and described, on any firearm similarly as open sights are now used as peep-sights on the samefirearm.

Now by the arrangement described the bead G as well as the sight-tube J are centrally arranged within the tubular supports D and H, and hence are not liable to be obstructed by mist or rain settling on the said parts. lt'wlll also be noticed that by having the'supports for the bead G and the sighttube J made of thin metal strips an exceedingly strong support is provided for the said parts, and hence a proper alinement is always had to insure accurate sight. By mounting the tubular supports D and H in the rings E and E it is evident that such supportsand the parts carried by the same can be readily removed at any time in case line through the axis ofthe sight-tube J of the rear sight B, and as the bead G is very small it is evident that a very fine sight can .bead with a dark object enables the marks-- man to fix the aim perfectly, and if the object is light the dark cross-strips F and F of the front sight A furnish the contrast of color with the object.

Having. thus described my invention, I claim as new and desire to secure by Letters Patent 1. In gun-sights, the combination with the front sight, comprising a ring having a base for attachment to the gun, a tubular support within the ring and provided with crossstrips having at their intersection a bead, of the rear sight comprising a mounted on a shell spring-plate provided w1th a notched plate for adjusting the elevation of the sight,

a tubular support within the ring, and provided with cross-strips and a sight-tube centrally supported within the tubular support by the cross-strips, the said bead being arranged in the axis of the said sight-tube.

2. A gun-sight comprising a front sight and a rear-sight, the front sight havin a tu- 3o bular su port, cross-strips in the, sai sup- 1 port, an a bead attached to one of the strips and located at the intersection of the strips, the said rear sight having a tubular support, cross-strips inthe said support, and a sighttube centrally supported within the said tubular support by the said cross-strips, the said bead being arra'ngedin the axis of the said sight-tube.

In testimony whereof I have signed my 40 name to this specification in the presence of two subscribing witnesses.

CHARLES GERHARD THUNEN.

Witnesses: a

W. DUNCAN, J12, FRANK THUNEN. 

